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Finding the Fourth Proportional to 473,840.40, 710,155.80 and 193,040.40

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Solution

The fourth proportional to 473,840.40, 710,155.80 and 193,040.40 is: 289,314.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,840.40 : 710,155.80 = 193,040.40 : x
  2. Step 2: Convert to fraction form
    473,840.40/710,155.80 = 193,040.40/x
  3. Step 3: Cross multiply
    473,840.40x = 710,155.80 × 193,040.40
  4. Step 4: Simplify right side
    473,840.40x = 137,088,759,694.32
  5. Step 5: Solve for x
    x = 137,088,759,694.32/473,840.40
  6. Step 6: Final answer
    x = 289,314.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.